some are looking to egypt to be a possible mediator wondering if egypt will be able to pressure hamas to back off as president hosni mubarak used to do. today the egyptian prime minister went into gaza trying to organize some kind of ceasefire. clearly it didn't work. inside israel three people died when a missile hit their home. talk about living in fear, this tel aviv couple forced to take wedding pictures outside a bomb shelter. in gaza city israel's airstrikes continue pounding away at militants themselves, weapons facilities and missile launching sites. for the first time both the israeli army and hamas have taken to twitter threatening one another. israelis are tweeting no hamas leader better show his face above ground. hamas is saying any more air attacks, we're going to hit more populated israeli targets. bottom line, the u.s. says israel has the right to self- defense. >>> meanwhile we're wrapping up a long bizarre week for former cia chief david petraeus. his sex scandal took a back seat today to the benghazi investigation. petraeus spent hours on capitol hill testifying abo